summaryrefslogtreecommitdiffstats
path: root/tools/h4toh5/h4toh5image.c
blob: 94fa08f0bbc40140eae26f310c7027b6d6121102 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
/*-------------------------------------------------------------------------
 *
 * Copyright (C) 2000   National Center for Supercomputing Applications.
 *                      All rights reserved.
 *
 *-------------------------------------------------------------------------
 */

/******************************************************************************

  Description: 

1. converter

See HDF4 to HDF5 mapping specification at
(http://hdf.ncsa.uiuc.edu/HDF5/papers/h4toh5) for the default mapping 
from HDF4 object to HDF5 object.
 
The whole converter includes 10 files, h4toh5util.h, h4toh5main.h, h4toh5util.c, h4toh5main.c, h4toh5sds.c, h4toh5image.c,h4toh5vdata.c,h4toh5vgroup.c,h4toh5pal.c and h4toh5anno.c.

2. this file 

converting an hdf4 image object into an hdf5 dataset, for three component image, this object will be converted into an hdf5 dataset with compound data type.

Author:  Kent Yang(ymuqun@ncsa.uiuc.edu)
 

*****************************************************************************/

#include "h4toh5main.h"

/*-------------------------------------------------------------------------
 * Function:	Image_h4_to_h5
 *
 * Purpose:     translate Image object into hdf5 dataset
 *              
 * Return:	FAIL if failed, SUCCEED if successful.
 *
 * In :	        
                ri_id: RI identifier
		h5_group: hdf5 group id
		h5_palgroup: hdf5 palette group id

 *-------------------------------------------------------------------------
 */	

int Image_h4_to_h5(int32 file_id,int32 ri_id,hid_t h5_group,hid_t h5_palgroup,int h4_attr) {

  int32    istat;
  int32    ngrattrs;
  int32    ncomp;
  int      check_gloattr;
  int32    start[2];
  int32    edges[2];
  int32    dimsizes[2];
  uint16   gr_ref;
  int32    image_dtype;

  int      check_imagename;
  int      i;
  char     image_name[MAX_GR_NAME];
  char     grlabel[MAX_GR_NAME];
  char     image_class[MAX_GR_NAME];
  char*    h5cimage_name;
  void*    image_data;
  HDF_CHUNK_DEF c_def_out;
  int32    chunk_dims[2];
  int32    chunk_dims24[3];
  int32    c_flags;
  int32    interlace_mode;

  /* for checking compression */

  sp_info_block_t info_block;
  int16           special_code;
  int32           access_id;
  uint16          ri_ref;
  int             gzip_level;
  uint16          temp_tag;
  uint16*          ptag_out;

  /* define varibles for hdf5. */

  hid_t    h5ty_id;
  hid_t    h5memtype;

  hid_t    h5_ctype;
  hid_t    h5_cmemtype;

  hid_t    h5d_sid;
  hid_t    h5dset;

  size_t   h4size;
  size_t   h4memsize;
  hsize_t   fielddim[1];
  hsize_t  h5dims[2];
  hsize_t  h5dims24[3];
  hsize_t bufsize;
  herr_t   ret;
  hid_t    create_plist;
  hid_t    write_plist;


  temp_tag = DFTAG_NULL;
  ptag_out = &temp_tag;

  /* zeroing out memory.*/

  h4toh5_ZeroMemory(image_name,MAX_GR_NAME);
  h4toh5_ZeroMemory(image_class,MAX_GR_NAME);
  h4toh5_ZeroMemory(grlabel,MAX_GR_NAME);

  /* Obtain information of the image.*/  

  if(GRgetchunkinfo(ri_id,&c_def_out,&c_flags)==FAIL){
    printf("error in getting chunking information. \n");
    return FAIL;
  }

  istat = GRgetiminfo(ri_id, image_name, &ncomp, &image_dtype, 
		      NULL, dimsizes, &ngrattrs);

  if(istat == FAIL) {
    printf("Cannot obtain GR info. at Image routine.\n");
    return FAIL;
  }

  /* data type transferring from hdf4 to hdf5. */
  if(h4type_to_h5type(image_dtype,&h5memtype,&h4memsize,
		      &h4size,&h5ty_id)== FAIL) {
    printf("failed to translate image datatype. \n");
    return FAIL;
  }
 
  /* check whether the datatype is string. */
  if (h5ty_id == H5T_STRING) {
    /* rechange string datatype into numerical datatype.*/

    if(h5string_to_int(image_dtype,&h5memtype,h4memsize,
		       &h5ty_id)== FAIL) {
      printf("error in translating H5T_STRING to int.\n");
      return FAIL;
    }
  }     

  start[0]   = 0;
  start[1]   = 0;
  edges[0]   = dimsizes[0];
  edges[1]   = dimsizes[1];
  
  image_data = malloc(h4memsize*dimsizes[0]*dimsizes[1]*ncomp);
  
  if(image_data == NULL) {
    printf("error in allocating memory for image data. \n");
    return FAIL;
  }

  istat = GRreadimage(ri_id, start, NULL, edges, (VOIDP)image_data);

  if (istat == FAIL) {
    printf("error in reading images.\n");
    free(image_data);
    return FAIL;
  }

  /* change the order of image dimension:
     due to the difference of hdf4 image specification and
     hdf5 image specification. Here we should separate 8-bit from
     24-bit according to H4TOH5 mapping specification.*/
  
  if(ncomp == 1) {
    h5dims[0] = edges[1]-start[1];
    h5dims[1] = edges[0]-start[0];
  }
  
  else {
    if(interlace_mode == MFGR_INTERLACE_PIXEL){
      h5dims24[0] = edges[1]-start[1];
      h5dims24[1] = edges[0]-start[0];
      h5dims24[2] = 3;
    }
    /* currently scan-line is not supported.
    else if (interlace_mode == MFGR_INTERLACE_LINE){
      h5dims24[0] = 3;
      h5dims24[1] = edges[1]-start[1];
      h5dims24[2] = edges[0]-start[0];
    }
    */
    else if (interlace_mode == MFGR_INTERLACE_COMPONENT){
      h5dims24[0] = 3;
      h5dims24[1] = edges[1]-start[1];
      h5dims24[2] = edges[0]-start[0];
    }

    else {/* treat as pixel */
      h5dims24[0] = edges[1]-start[1];
      h5dims24[1] = edges[0]-start[0];
      h5dims24[2] = 3;
    }
  }

  gr_ref = GRidtoref(ri_id);
  if(gr_ref == 0) {
    printf("error in obtaining gr reference number. \n");
    free(image_data);
    return FAIL;
  }
  
  /* obtaining absolute path of image name.*/
  check_imagename = -10;
  h5cimage_name = get_name(gr_ref,2*num_images,gr_hashtab,&check_imagename);

  if (h5cimage_name == NULL && check_imagename == 0 ) {
     printf("error,cannot find image name.\n");
     free(image_data);
     return FAIL;
  }

  if (h5cimage_name == NULL && check_imagename == -1) {
     printf("error,image name is not defined.\n");
     free(image_data);
     return FAIL;
  }

  if (h5cimage_name == NULL && check_imagename == -2) {
     printf("error,not enough memory for get_name. \n");
     free(image_data);
     return FAIL;
  }

  /****  check number of component of the image object,
	 and transfer HDF4 object into HDF5 object. ****/

  if (ncomp <= 0) {
     printf("error in obtaining image component\n");
     free(image_data);
     free(h5cimage_name);
     return FAIL;
  }

  /* create property list. */

  create_plist = H5Pcreate(H5P_DATASET_CREATE);
  /* wait until the compression information can be obtained for image,
     4/28/2001, Kent Yang.*/

  /* the following code deals with compression. Has to use 
     some middle-level APIs. */
  ri_ref = 0;
  /*
   ri_ref = get_RIref(file_id,DFTAG_VG,gr_ref,ptag_out);

  if(ri_ref >0 ){
    if(*ptag_out == DFTAG_RI) printf("okay\n");
    access_id = Hstartread(file_id,*ptag_out,ri_ref);
  }
  */
  if(ri_ref == 0) 
    access_id = FAIL;
  

  /*  if(access_id == FAIL){
    printf("cannot find RI tag,the compression mode will not be checked");
    printf(" when RIG is not chunked.\n");
    }*/
  
  if(access_id != FAIL) {
    istat = Hinquire(access_id,NULL,NULL,NULL,NULL,NULL,NULL,NULL,&special_code);
    if(istat == FAIL) {
      printf("failed to inquire information \n ");
      free(image_data);
       free(h5cimage_name);
      H5Pclose(create_plist);
      return FAIL;	
    }

    if(special_code >0){
      
      if(HDget_special_info(access_id,&info_block)==FAIL){
	printf("fail to get special info.\n");
	free(image_data);
	free(h5cimage_name);
	H5Pclose(create_plist);
	return FAIL;	
      }

      if(info_block.key == SPECIAL_COMP) {
   
	if(c_flags == HDF_NONE){
	  /* 1. the current HDF5 will not handle compression case itself, 
	     in order that the converted HDF5 is compressed, we have to
	     provide a chunking size. currently it is set to h5dim[i].*/

	  if(ncomp == 1) {
	    chunk_dims[0] = (hsize_t)(h5dims[0]);
            chunk_dims[1] =(hsize_t)(h5dims[1]);
	  
	    if(H5Pset_chunk(create_plist, 2, chunk_dims)<0) {
	      printf("failed to set up chunking information for ");
	      printf("property list.\n");
	      free(image_data);
	      free(h5cimage_name);
	      H5Pclose(create_plist);
	      return FAIL;	
	    }
	  }

	  else if(ncomp ==3) {/*24-bit chunk dimension is set to the current
				HDF5 dimension.*/
	    if(interlace_mode == MFGR_INTERLACE_PIXEL){
	      chunk_dims24[0] = edges[1]-start[1]; 
	      chunk_dims24[1] = edges[0]-start[0];
	      chunk_dims24[2] = 3;
	    }
	    /* currently scan-line is not supported.
	       else if (interlace_mode == MFGR_INTERLACE_LINE){
	       chunk_dims24[0] = 3; 
	       chunk_dims24[1] = edges[1]-start[1];
	       chunk_dims24[2] = edges[0]-start[0];
	       }
	    */
	    else if (interlace_mode == MFGR_INTERLACE_COMPONENT){
	      chunk_dims24[1] = edges[1]-start[1]; 
	      chunk_dims24[2] = edges[0]-start[0];
	      chunk_dims24[0] = 3;
	    }

	    else {/* treat as pixel */
	      chunk_dims24[0] = edges[1]-start[1]; 
	      chunk_dims24[1] = edges[0]-start[0];
	      chunk_dims24[2] = 3;
	    }
	    if(H5Pset_chunk(create_plist, 3, chunk_dims24)<0) {
	      printf("failed to set up chunking information for ");
	      printf("property list.\n");
	      free(image_data);
	      free(h5cimage_name);
	      H5Pclose(create_plist);
	      return FAIL;	
	    }
	  }
	  if(H5Pset_deflate(create_plist,GZIP_COMLEVEL)<0){
	    /*    if(H5Pset_deflate(create_plist,2)<0){*/
	    printf("fail to set compression method for HDF5 file.\n"); 
	     free(image_data);
	    free(h5cimage_name);
	    H5Pclose(create_plist);
	    return FAIL;
	  }
	}

      }
    }

  }
  if(c_flags == HDF_CHUNK || c_flags == (HDF_CHUNK | HDF_COMP)
     || c_flags == (HDF_CHUNK | HDF_NBIT)  ){

    if(c_def_out.comp.comp_type == COMP_CODE_RLE || c_def_out.comp.comp_type == COMP_CODE_NBIT || c_def_out.comp.comp_type == COMP_CODE_SKPHUFF || c_def_out.comp.comp_type == COMP_CODE_DEFLATE || c_def_out.comp.comp_type == COMP_CODE_JPEG) {
      if(ncomp ==1) {   
	chunk_dims[0] = c_def_out.chunk_lengths[0]; 
	chunk_dims[1] = c_def_out.chunk_lengths[1];
       
	if(H5Pset_chunk(create_plist, 2, (hsize_t *)chunk_dims)<0) {
	  printf("failed to set up chunking information for ");
	  printf("property list.\n");
	  free(image_data);
	  free(h5cimage_name);
	  H5Pclose(create_plist);
	  return FAIL;	
	}
      }

      else if(ncomp ==3) {
	if(interlace_mode == MFGR_INTERLACE_PIXEL){
      chunk_dims24[0] = c_def_out.chunk_lengths[1]; 
      chunk_dims24[1] = c_def_out.chunk_lengths[0];
      chunk_dims24[2] = 3;
    }
    /* currently scan-line is not supported.
    else if (interlace_mode == MFGR_INTERLACE_LINE){
      chunk_dims24[0] = c_def_out.chunk_lengths[1]; 
      chunk_dims24[2] = c_def_out.chunk_lengths[0];
      chunk_dims24[1] = 3;
    }
    */
    else if (interlace_mode == MFGR_INTERLACE_COMPONENT){
      chunk_dims24[1] = c_def_out.chunk_lengths[1]; 
      chunk_dims24[2] = c_def_out.chunk_lengths[0];
      chunk_dims24[0] = 3;
    }

    else {/* treat as pixel */
      chunk_dims24[0] = c_def_out.chunk_lengths[1]; 
      chunk_dims24[1] = c_def_out.chunk_lengths[0];
      chunk_dims24[2] = 3;
    }
      }
	if(c_def_out.comp.comp_type == COMP_CODE_DEFLATE)
	  gzip_level = c_def_out.comp.cinfo.deflate.level;
	else gzip_level = GZIP_COMLEVEL;
	if(H5Pset_deflate(create_plist,gzip_level)<0){
	  printf("fail to set compression method for HDF5 file.\n"); 
	   free(image_data);
	   free(h5cimage_name);
	   H5Pclose(create_plist);
	}
    }
  }

  /* HDF4 can support various compression methods including simple RLE, NBIT, Skip Huffman, gzip,Jpeg , HDF5 currently only supports gzip compression. 
 By default, we will compress HDF5 dataset by using gzip compression if HDF5 file is compressed. */

  /* we don't use data transfer property list. 
 write_plist = H5Pcreate_list(H5P_DATASET_XFER_NEW);
 bufsize = h4memsize *h5dims[1]*ncomp;

  if(H5Pset_buffer(write_plist,bufsize,NULL,NULL)<0) {
    printf("fail to create data transfer property list.\n");
    free(image_data);
    free(h5cimage_name);
    H5Pclose(create_plist);
    return FAIL;		
  }
  */
 if (ncomp == 1) {

     h5d_sid = H5Screate_simple(2,h5dims,NULL);
     
     if(h5d_sid <0) {
       printf("error in creating space for dataset. \n");
       free(image_data);
       free(h5cimage_name);
       H5Pclose(create_plist);
       return FAIL;
     }

     h5dset  = H5Dcreate(h5_group,h5cimage_name,h5ty_id,h5d_sid,create_plist);

     if(h5dset < 0) {
       printf("error in creating hdf5 dataset converted from images. \n");
       free(image_data);
       free(h5cimage_name);
       H5Pclose(create_plist);
       return FAIL;
     }

     if (H5Dwrite(h5dset,h5memtype,h5d_sid,h5d_sid,H5P_DEFAULT,
		  image_data)<0) {
        printf("error writing data for hdf5 dataset converted from images.\n");
	free(image_data);
	free(h5cimage_name);
        H5Pclose(create_plist);
        return FAIL;
     }
	
 }

   else { /* 24-bit image */

     h5d_sid     = H5Screate_simple(3,h5dims24,NULL);

     h5dset      = H5Dcreate(h5_group,h5cimage_name,h5ty_id,h5d_sid,
			     create_plist);
     if(h5dset < 0) {
       printf("error in creating dataset. \n");
       free(image_data);
       free(h5cimage_name);
       H5Pclose(create_plist);
       return FAIL;
     }

     if (H5Dwrite(h5dset,h5memtype,h5d_sid,h5d_sid,H5P_DEFAULT,
		  (void *)image_data)<0) {
        printf("error writing data\n");
	free(image_data);
	free(h5cimage_name);
        H5Pclose(create_plist);
	return FAIL;
     } 
   }
 
 free(image_data);
/* convert image annotation into attribute of image dataset.
     Since there is no routines to find the exact tag of image object,
     we will check three possible object tags of image objects, that is:
     DFTAG_RIG,DFTAG_RI,DFTAG_RI8. If the object tag of image object is 
     falling out of this scope, we will not convert annotations into
     hdf5 attributes; it is user's responsibility to make sure object tags
     for image objects are only one of the above three tags.*/

  if(Annoobj_h4_to_h5(file_id,gr_ref,DFTAG_RIG,h5dset)== FAIL){
    printf("failed to convert image annotation into hdf5 attribute.\n");
    free(h5cimage_name);
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    return FAIL;
  }

  if(Annoobj_h4_to_h5(file_id,gr_ref,DFTAG_RI,h5dset)== FAIL){
    printf("failed to convert image annotation into hdf5 attribute.\n");
    free(h5cimage_name);
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    return FAIL;
  }

  if(Annoobj_h4_to_h5(file_id,gr_ref,DFTAG_RI8,h5dset)== FAIL){
    printf("failed to convert image annotation into hdf5 attribute.\n");
    free(h5cimage_name);
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    return FAIL;
  }
  
  
 /************************************/
  /* translate GR attributes into HDF5 dataset attribute.*/

  check_gloattr = 0;
  if(gr_tranattrs(ri_id,h5dset,ngrattrs,check_gloattr)==FAIL){ 
    printf(" cannot obtain attributes. \n");
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    return FAIL;
  }

  /*  deal with h5dset predefined and user-defined attributes. 
      Obtain the name and data type and the total number of attributes.  
      Data attribute at hdf4 is only one-dimensional array. */

 
  if (ncomp == 1 && h4size == 1)
     strcpy(grlabel,RAST8LABEL);
  else if(ncomp == 3 && h4size == 1)
     strcpy(grlabel,RAST24LABEL);
  else
     strcpy(grlabel,GRLABEL);

  strcpy(image_class,IM_CLASS);

  /* transfer hdf4 predefined attributes into hdf5 dataset.*/
  if(h4_transpredattrs(h5dset,HDF4_OBJECT_TYPE,grlabel)==FAIL){
    printf("error in getting hdf4 image type attribute \n");
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    free(h5cimage_name);
    return FAIL;
  }

  if(h4_attr!=0) {
  if(h4_transpredattrs(h5dset,HDF4_OBJECT_NAME,image_name)==FAIL){
    printf("error in getting hdf4 image name attribute. \n");
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    free(h5cimage_name);
    return FAIL;
  }
  }
  if(h4_transpredattrs(h5dset,HDF4_IMAGE_CLASS,image_class)==FAIL){
    printf("error in getting hdf4 image class attribute. \n");
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    free(h5cimage_name);
    return FAIL;
  }

  if(ncomp >1) {
    if(interlace_mode == MFGR_INTERLACE_PIXEL){
      if(h4_transpredattrs(h5dset,INTERLACE_MODE,PIXEL_INTERLACE)==FAIL){
	printf("unable to generate image pixel attribute.\n");
      H5Pclose(create_plist);
      H5Sclose(h5d_sid); 
      H5Dclose(h5dset);
      free(h5cimage_name);
      return FAIL;
      }
    }
    /* currently scan-line is not supported.
    else if (interlace_mode == MFGR_INTERLACE_LINE){
     if(h4_transpredattrs(h5dset,INTERLACE_MODE,LINE_INTERLACE)==FAIL){
      printf("unable to generate image line attribute.\n");
      H5Pclose(create_plist);
      H5Sclose(h5d_sid); 
      H5Dclose(h5dset);
      free(h5cimage_name);
      return FAIL;
      }
      }*/
    else if (interlace_mode == MFGR_INTERLACE_COMPONENT){
      if(h4_transpredattrs(h5dset,INTERLACE_MODE,PLANE_INTERLACE)==FAIL){
       printf("unable to generate image component attribute.\n");
      H5Pclose(create_plist);
      H5Sclose(h5d_sid); 
      H5Dclose(h5dset);
      free(h5cimage_name);
      return FAIL;
      }
    }
   
    else {/* treat as pixel interlace mode. */
     if(h4_transpredattrs(h5dset,INTERLACE_MODE,PIXEL_INTERLACE)==FAIL){
      printf("unable to generate image pixel attribute.\n");
      H5Pclose(create_plist);
      H5Sclose(h5d_sid); 
      H5Dclose(h5dset);
      free(h5cimage_name);
      return FAIL;
      }
    } 
      
  }
  
  if(h4_attr !=0){
 
  gr_ref = GRidtoref(ri_id);

  if(gr_ref == 0) {
    printf("error in obtaining reference number of GR.\n");
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    free(h5cimage_name);
    return FAIL;
  }

  if(h4_transnumattr(h5dset,HDF4_REF_NUM,gr_ref)==FAIL) {
    printf("error in getting hdf4 image number attribute.\n");
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    free(h5cimage_name);
    return FAIL;
  }
  }
  /* deal with palette. */

  if(gr_palette(file_id,ri_id,h5dset,h5_palgroup,h4_attr)== FAIL) {
    printf("error in translating palette into h5 dataset.\n");
    H5Pclose(create_plist);
    H5Sclose(h5d_sid); 
    H5Dclose(h5dset);
    free(h5cimage_name);
    return FAIL;
  }
 
  ret   = H5Pclose(create_plist);
  ret   = H5Sclose(h5d_sid); 
  ret   = H5Dclose(h5dset);
  istat = GRendaccess(ri_id);
  free(h5cimage_name);
  return SUCCEED;
  }

/**** palette routine. ****/
/*-------------------------------------------------------------------------
 * Function:	gr_palette
 *
 * Purpose:     translate palette  into hdf5 dataset
 *              
 * Return:	FAIL if failed, SUCCEED if successful.
 *
 * In :	        
                file_id: HDF4 identifier
		ri: raster image id
		h5dset: hdf5 dataset
		h5_palgroup: hdf5 palette group

   Out:         
 *-------------------------------------------------------------------------
 */	

int gr_palette(int32 file_id,int32 ri_id,hid_t h5dset,hid_t h5_palgroup,int h4_attr) {

  int32      pal_id;
  uint16     pal_ref;
  char       palref_str[MAXREF_LENGTH];
  char       palg_name[MAX_GR_NAME];
  char       image_index[MAX_GR_NAME];
  int        check_pal;
  int        check_palname;
  int        pal_stat;
  char*      h5pal_name=NULL;


  /* get palette id */
  pal_id  = GRgetlutid(ri_id,0);
  if(pal_id == FAIL) {
    printf("error in obtaining palette id. \n");
    return FAIL;
  }

  pal_ref = GRluttoref(pal_id);
 
  if(pal_ref >0) {

    /* convert reference number into string format. */
    if(conv_int_str(pal_ref,palref_str)==FAIL) {
      printf("error in converting palette reference number into string.\n");
      return FAIL;
    }

    /* check whether this palette has been looked up already. */
    check_pal = lookup(pal_ref,PAL_HASHSIZE,pal_hashtab);

    if( check_pal < 0) {
      printf("error at looking up palette table. \n");
      return FAIL;
    }

    /* if check_pal equals to 1, this palette has already been 
       converted into hdf5 dataset, just obtain the palette name.
       if check_pal equals to 0, we will do the converting. */

    if(check_pal == 1) {

      h5pal_name = get_name(pal_ref,PAL_HASHSIZE,pal_hashtab,
			    &check_palname);
    
      if (h5pal_name == NULL && check_palname == 0 ) {		      
	 printf("error,cannot find group\n");			      
	 return FAIL;							      
      }							      
									      
      if (h5pal_name == NULL && check_palname == -1 ) {	       
         printf("error,group name is not defined.\n");		      
	 return FAIL;							      
      }	
						      
    }							      
    
    if(check_pal == 0) {
      /* do converting. */
      strcpy(palg_name,HDF4_PALG);

      /* obtain hdf5 dataset name converted from palette,
	 no name for hdf4 palette.*/
      h5pal_name = get_obj_aboname(NULL,palref_str,palg_name,HDF4_PALETTE);
      if(h5pal_name == NULL) {
	printf("error in getting hdf5 palette name.\n");
	return FAIL;
      }

      if(set_name(pal_ref,PAL_HASHSIZE,pal_hashtab,h5pal_name)==FAIL) {
	printf("error in setting object name.\n");	
	free(h5pal_name);
	return FAIL;
      }

      pal_stat = Palette_h4_to_h5(file_id,pal_id,h5_palgroup,h5pal_name,h4_attr);

      if(pal_stat == FAIL) {
        printf("error occurring in transferring palette into dataset. \n");
	free(h5pal_name);
	return FAIL;
      }

    }

    if(create_pal_objref(h5dset,h5_palgroup,h5pal_name)== FAIL) {
      printf("error in creating palette object reference.\n");
      free(h5pal_name);
      return FAIL;
    }

    if(h5pal_name != NULL) free(h5pal_name);

    strcpy(image_index,HDF4_IMAGE_INDEXED);
    if(h4_transpredattrs(h5dset,HDF4_IMAGE_SUBCLASS,image_index)== FAIL) {
      printf("failed to transfer hdf4 image indexed.\n");
      return FAIL;
    }
  }
  return SUCCEED;
}
/***** end of palette application. *****/
/*-------------------------------------------------------------------------
 * Function:	gr_tranattrs
 *
 * Purpose:     translate attributes of Image object into hdf5 dataset
 *              
 * Return:	FAIL if failed, SUCCEED if successful.
 *
 * In :	        
                sri_id: RI identifier
		sh5_dset: hdf5 dataset
		snum_grattrs: number of attribute
		check_gloflag: flag to check whether this attribute belongs
		to gr interface.

   Out:         
 *-------------------------------------------------------------------------
 */	
int gr_tranattrs(int32 sri_id, hid_t sh5_dset,int snum_grattrs,
		 int check_gloflag) {
    
  char      sgratrr_name[2*MAX_NC_NAME];
  char      grglo[MAX_NC_NAME];
  char*     grrepattr_name;
  int32     count_sgradata;
  int32     sgr_atype;
  size_t    sh4_amemsize;
  size_t    sh4_asize;

  hid_t     sh5a_sid;
  hid_t     sh5a_id;
  hid_t     sh5_atype;
  hid_t     sh5_amemtype;
  hid_t     sh5str_type;
  hid_t     sh5str_memtype;
  hsize_t   sh5dims[MAX_VAR_DIMS];
  void*     sgr_adata;
  herr_t    sret;
  int       i;

 
  for (i =0;i <snum_grattrs;i++) {
      
     if (GRattrinfo(sri_id,i,sgratrr_name,&sgr_atype,&count_sgradata)==FAIL){  
        printf("unable to obtain attribute information. \n"); 
        return FAIL;
     }
     
     /*convert datatype for attribute. */

     if(h4type_to_h5type(sgr_atype,&sh5_amemtype,&sh4_amemsize,
			 &sh4_asize,&sh5_atype)==FAIL){
       printf("unable to do type transferring.\n");
       return FAIL;
     }

     sgr_adata = malloc(sh4_amemsize*count_sgradata);

     if(GRgetattr(sri_id,i,(VOIDP)sgr_adata)==FAIL){
       printf("unable to get GR attributes. \n");
       return FAIL;
     }
	
     /* if attribute doesn't have name, a default name is set. */
     if(sgratrr_name[0] == '\0') {
       grrepattr_name = trans_obj_name(DFTAG_RIG,i);
       strcpy(sgratrr_name,grrepattr_name);
       free(grrepattr_name);
     }

     /* if the sds attribute is a file attribute. */
     if(check_gloflag == 1){
       strcpy(grglo,GLOIMAGE);
       strcat(sgratrr_name,"_");
       strcat(sgratrr_name,grglo);
     }
     /* now do attribute-transferring.
       1. deal with string data type
       2. set attribute space.
       3. get attribute name, set property list. */
           
     if (sh5_atype == H5T_STRING) {

	sh5a_sid = H5Screate(H5S_SCALAR);

	if (sh5a_sid < 0) {
	   printf("failed to create attribute space for IMAGE. \n"); 
	   return FAIL;
	}

	if ((sh5str_type = mkstr(count_sgradata*sh4_asize,H5T_STR_SPACEPAD))<0){
           printf("error in making string for image attribute \n");
	   return FAIL;
	}

        /* check this line later. */
       	if ((sh5str_memtype = mkstr(count_sgradata*sh4_amemsize,
				    H5T_STR_SPACEPAD))<0){
	  printf("error in making memory string. \n");
	  return FAIL;
	}

        sh5a_id = H5Acreate(sh5_dset,sgratrr_name,sh5str_type,sh5a_sid,
			    H5P_DEFAULT);
        if (sh5a_id <0) {
	   printf("failed to obtain attribute id for IMAGE. \n");
	   return FAIL;
	}

        sret = H5Awrite(sh5a_id,sh5str_memtype,(void *)sgr_adata);

	if (sret <0) {
	  printf("failed to obtain attribute of IMAGE.\n ");
	  return FAIL;
	}

        sret = H5Sclose(sh5a_sid);
        sret = H5Aclose(sh5a_id);
     }
	 
     else {
      
       if (count_sgradata == 1) {

	 sh5a_sid = H5Screate(H5S_SCALAR);

	 if (sh5a_sid < 0) {
	   printf("failed to create space id. \n");
	   return FAIL;
	 }
       }
       else {

          sh5dims[0] = count_sgradata;
	  sh5a_sid =  H5Screate_simple(1,sh5dims,NULL);
          
	  if (sh5a_sid < 0) {
	    printf("failed to create attribute space. \n");
	    return FAIL;
	  }
       }

       sh5a_id = H5Acreate(sh5_dset,sgratrr_name,sh5_atype,sh5a_sid,
			   H5P_DEFAULT);

       if(sh5a_id <0) {
	 printf("failed to obtain attribute id. \n");
         return FAIL;
       }

       sret = H5Awrite(sh5a_id,sh5_amemtype,(void *)sgr_adata);

       if(sret <0) {
	 printf("failed to obtain attribute.\n ");
         return FAIL;
       }
       sret = H5Aclose(sh5a_id);
       sret = H5Sclose(sh5a_sid);

     }

     free(sgr_adata);

  }

  return SUCCEED;
}
	
/*-------------------------------------------------------------------------
 * Function:	create_pal_objref
 *
 * Purpose:     create object reference for palette
 *              
 * Return:	FAIL if failed, SUCCEED if successful.
 *
 * In :	        
		h5dset: hdf5 dataset
		h5_palgroup: hdf5 palette group
		h5pal_name: hdf5 palette name

   Out:         
 *-------------------------------------------------------------------------
 */	

int create_pal_objref(hid_t h5dset,hid_t h5_palgroup,char *h5pal_name){

    hobj_ref_t pal_refdat;
    hsize_t    pal_refDims[1];
    hid_t      pal_refSpace;
    hid_t      pal_refType;
    hid_t      attribID;
    herr_t     ret;

    pal_refDims[0] = 1;
    pal_refSpace   = H5Screate_simple(1,pal_refDims,NULL);

    if(pal_refSpace < 0) {
      printf("error in obtaining reference space. \n");
      return FAIL;
    }

    pal_refType    = H5Tcopy(H5T_STD_REF_OBJ);
    if(pal_refType < 0) {
      printf("error in obtaining reference type. \n");
      H5Sclose(pal_refSpace);
      return FAIL;
    }

    ret            = H5Rcreate(&pal_refdat,h5_palgroup,h5pal_name,
				H5R_OBJECT,-1);
    if(ret < 0) {
      printf("error in creating reference space. \n");
      H5Sclose(pal_refSpace);
      H5Tclose(pal_refType);
      return FAIL;
    }

    attribID       = H5Acreate(h5dset,PALETTE,pal_refType,pal_refSpace,
				H5P_DEFAULT);

    if(attribID < 0) {
      printf("error in obtaining attribute ID. \n");
      H5Sclose(pal_refSpace);
      H5Tclose(pal_refType);
      return FAIL;
    }

    ret            = H5Awrite(attribID,pal_refType,(void *)&pal_refdat);

      
    H5Sclose(pal_refSpace);
    if(H5Tclose(pal_refType)<0) {
      printf("error closing palette reference type.\n");
      H5Aclose(attribID);
    }   
    H5Aclose(attribID);
    return SUCCEED;
}


uint16 get_RIref(int32 file_id,uint16 tag,int32 gr_ref,uint16* ptag_out){

  DFdi di;
  int32 found,GroupID;
  int ri_ref = 0;
  
  if((GroupID = DFdiread(file_id,tag,(uint16)gr_ref))<0){
    printf("cannot find gr_ref\n");
    return ri_ref;
  }

  found = 0;
  di.tag = DFTAG_NULL;
  di.ref = 0;
  while((found == 0) &&(DFdiget(GroupID,&di.tag,&di.ref)==0)){
    if(di.tag == DFTAG_CI ||di.tag == DFTAG_RI || di.tag == DFTAG_CI8 ||
       di.tag == DFTAG_RI8)
      found = 1;
  }

  *ptag_out = di.tag;
  ri_ref = di.ref;
  ri_ref = 1;
  if(!found) {
    printf("cannot find ri_ref\n");
    return 0;
  }
  DFdifree(GroupID);
  return ri_ref;

}